I certainly wouldn't be keeping items just out of fear!
On my last trip to my FP store I bought a ton of stuff. The total bill seemed reaallly high, but I just assumed my sister bought more than I expected (she was in the store with me and I was paying for it all since I had PCE card and she did not). Well, it turned out that they had double charged me on pretty much the entire order! So they are going to show up as tons and tons of returns! $1000 worth!
So really, I wouldn't worry about it. I think the letter is for people to do it a whole lot more than 3-4 times a year! I'd assume you need to be returning 20+ a year without receipt to get that letter and returning even more than that (with receipt) to get the returns letter.
On my last trip to my FP store I bought a ton of stuff. The total bill seemed reaallly high, but I just assumed my sister bought more than I expected (she was in the store with me and I was paying for it all since I had PCE card and she did not). Well, it turned out that they had double charged me on pretty much the entire order! So they are going to show up as tons and tons of returns! $1000 worth!
So really, I wouldn't worry about it. I think the letter is for people to do it a whole lot more than 3-4 times a year! I'd assume you need to be returning 20+ a year without receipt to get that letter and returning even more than that (with receipt) to get the returns letter.